feat: initial commit for erofs support

.github/workflows/build.yaml

@@ -6,7 +6,7 @@ jobs:
   build:
     strategy:
       matrix:
-        os: [ubuntu-20.04, ubuntu-22.04]
+        os: [ubuntu-20.04, ubuntu-22.04, ubuntu-24.04]
     name: build
     runs-on: ${{ matrix.os }}
     steps:
@@ -20,7 +20,7 @@ jobs:
           sudo apt-get update
           sudo apt-get install bats fuse3 make libcryptsetup-dev libgpgme-dev \
           libcap-dev lxc libdevmapper-dev libacl1-dev libarchive-tools \
-          squashfuse squashfs-tools
+          squashfuse squashfs-tools erofs-utils
       - name: setup lxc
         run: |
           chmod ugo+x $HOME

cmd/atomfs/mount.go

@@ -12,7 +12,7 @@ import (
 	"github.com/urfave/cli"
 	"golang.org/x/sys/unix"
 	"machinerun.io/atomfs"
-	"machinerun.io/atomfs/squashfs"
+	"machinerun.io/atomfs/pkg/squashfs"
 )
 
 var mountCmd = cli.Command{

cmd/atomfs/umount.go

@@ -7,7 +7,7 @@ import (
 	"syscall"
 
 	"github.com/urfave/cli"
-	"machinerun.io/atomfs/mount"
+	"machinerun.io/atomfs/pkg/mount"
 )
 
 var umountCmd = cli.Command{

molecule.go

@@ -9,8 +9,8 @@ import (
 	ispec "github.com/opencontainers/image-spec/specs-go/v1"
 	"github.com/pkg/errors"
 	"golang.org/x/sys/unix"
-	"machinerun.io/atomfs/mount"
-	"machinerun.io/atomfs/squashfs"
+	"machinerun.io/atomfs/pkg/mount"
+	"machinerun.io/atomfs/pkg/squashfs"
 )
 
 type Molecule struct {

pkg/common/common.go

@@ -0,0 +1,11 @@
+package common
+
+import "os"
+
+func FileChanged(a os.FileInfo, path string) bool {
+	b, err := os.Lstat(path)
+	if err != nil {
+		return true
+	}
+	return !os.SameFile(a, b)
+}